Support your local Starbucks Union workers! Unionized Starbucks locations in the Bay Area include stores in San Francisco's Castro (18th & Castro) and Inner Sunset (9th & Irving) neighborhoods, and 1211 Embarcadero in Oakland. These stores are part of a nationwide unionization effort under Starbucks Workers United. Starbucks Workers United, is affiliated with SEIU 1021nwhich represents these workers in their fight for fair contracts and better working conditions.